/Engine/Source/Runtime/Core/Public/Serialization/CustomVersion.h
Structure to hold unique custom key with its version.
struct FCustomVersion
FGuid
Key
Unique custom key.
int32
ReferenceCount
Number of times this GUID has been registered
CustomVersionVa...
Validator
An optional validator that will be called if a package has a given version that can prevent it from loading
int32
Version
Custom version.